Adjustable horse.



O. KAMRATH.

ADJUSTABLE HORSE.

APPLICATION nun APR.9,1908.

970,50 Patented Sept. 20, 1910.

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UNITED STATES PATENT OFFICE.

CHARLES KAMRATH, OF NORTH MILWAUKEE, WISCONSIN.

ADJUSTABLE HORSE.

To all whom it may concern:

Be it known that I, CHARLES KAMRATH, residing in North Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Adjustable Horses, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

My invention has relation to improvements in an adjustable horse for supporting the end of a platform used by plasterers, carpenters, and other artisans.

The primary object of the invention is to provide an improved form of horse which is simple in construction and'capable of being readily collapsed or folded together, and which also provides an improved means for bracing the legs under different longitudinal adjustments of the top portion of the horse, and also providing an adjustable means for effecting the bracing whereby the legs are held and braced either when in an upright position or in an outwardly inclined position.

With the above, and other incidental, objects in view, the invention consists of the devices and parts, or their equivalents, as hereinafter set forth.

In the accompanying drawing, Figure 1 is a side elevation of a horse set up ready for use, but showing one of the sectional legs at one end removed; Fig. 2 is an inverted plan view of the complete device when folded together; Fig. 3 is a view of the central beam employed, when it is desired to dispense with the longitudinally adjustable feature of the device; Fig. 4 is a horizontal section through the two sections of one of the legs, on a plane just above the bolt which connects said leg sections; and Fig. 5 is an end View of Fig. 1, parts broken away.

The top of the horse is shown as consisting of two parallel beams 6, 6 spaced a distance apart laterally, and two other beams 7, 7 disposed in an end to end relation to each other, and in the space between the beams 6. Each of the beams 6 is provided with a series of openings 8 arranged in a longitudinal line, and each of the beams 7 is provided with a series of similar openings. By the provision of these openings the beams 7 may be pulled outwardly or pushed inwardly in order to lengthen or Specification of Letters Patent.

Application filed April 9, 1908.

Patented Sept. 20, 1910. Serial No. 426,006.

shorten the horse as desired, and the several beams are secured together in their adj ustedposition by means of bolts 9 which are passed through the respective openings of the beams, it being necessary of course to bring said openings into registration.

Each leg of the horse consists of an upper and lower section 10 and 11, respectively, adjustably fitted together, and with the upper leg section 10 preferably overlapping the outside of the lower leg section 11. The adjustment is preferably secured by passing a bolt 12 through an opening located near the upper end of the lower leg section and through an elongated slot 13 in the upper leg section. The outer end of the bolt is threaded to receive a win nut 14. By loosening the nut 14 it is evident that one of the leg sections may be slid upon the other and the height of the horse thereby readily regulated, the nut being again tightened when the desired height is attained. In order to guide the leg sections when they are thus moved one upon the other, I provide the inner side of each upper leg section, upon opposite sides of the slot 13, with grooves 15, 15, which grooves receive pins or studs 16, 1G projecting from the other leg section. Of course, if desired each upper leg section might be provided with only one of these grooves, and each lower leg section with only one of the cooperating pins 01' studs, but the arrangement shown in the drawing is the preferable one. The upper leg sections of each pair of legs are secured to the beams 7 near the outer ends of said beams by means of transverse bolts 17, one end of each of said bolts being threaded to receive a wing nut 18. The legs are spread apart as usual, and are braced in their spread out position by means of a spreader bar 19. Each spreader bar is formed between its ends with a slot 20, of L-shaped formation, with the horizontal portion of the slot provided with a downwardly projecting extension, the slot formation being what is commonly termed a bayonet slot.

Pivoted to the under side of each beam 7 at a medial point of said beam, is a brace rod 21. The outer end of each brace rod is bent at a slight angle to the main portion thereof, and this outer end is made to engage the short depending extension of the bayonet slot, being held in such engagement by means of nuts 22 turned on to the threaded extremity of the rod and against opposite sides of the spreader bar 19.

In order to adjust the horse to the position shown in Fig. 1 ready for use, the leg sections are turned to an upright position, care being taken that the wing nuts are after such adjustment turned tightly so as to maintain the legs upright. The bolts 9 are now removed and the beams 7 adjusted outwardly or inwardly, in accordance with the length of the horse desired, and said bolts are then passed through the openings of the beams 6 and 7 which have been brought into regis tration. The leg sections are next adjusted vertically by loosening the wing nuts 14, and when the desired height is attained, said wing nuts are again tightened. The final step is to turn the brace rods 21 outwardly, and secure the outer ends in the bayonet slots 20.

In order to collapse and fold the horse, all that is necessary is to disconnect the brace rods 21 and loosen the wing nuts 18, the latter permitting the legs to be turned on the bolts 17. The brace rods are first turned upwardly so as to extend outwardly and lie against the under sides of the beams 7, the legs being finally turned upwardly and inwardly against the under sides of the beams 6 and 7 as clearly shown in Fig. 2. When the parts are thus folded together, it will be seen that they occupy a very compact space, and at the same time the legs straddle the beams 6, and thereby lie in the same plane as said beams, bringing most of the parts on the same level.

The construction thus far described, wherein provision is made for the longitudinal adjustment of the horse, is particularly adapted for plasterers use. For carpenters use, however, the longitudinal adjustment is not so essential, and I therefore prefer to employ for such use a single beam 23, shown in Fig. 3, instead of the beams 6, 6, and the beams 7, 7 longitudinally adjustable between the beams 6. This beam 23 when used is only provided with openings at opposite ends for the passage therethrough of the bolts 17.

Vhat I claim as my invention is:

In a horse, the combination of a main top portion, divergent legs at opposite ends of said top portion, a spreader bar connecting each pair of divergent legs, each spreader bar formed between its ends with a bayonet slot, brace rods pivoted to the under side of the top, and adapted to have their outer ends engage the bayonet slots of the brace bars, and nuts on the outer ends of said brace rods and adapted to be turned against the brace bars.

In testimony whereof, I aflix my signature, in presence of two witnesses.

CHARLES KAMRATH.

lVitnesses:

A. L. MORSELL, ANNA F. SCHMIDTBAUER. 

